Pipeline, Thick-Matter Pump and Method for Determining a Pressure and/or a Wall Thickness in the Pipeline
a technology of thick-matter pump and pipeline, which is applied in the direction of rigid pipes, pipe protection against damage/wear, instruments, etc., can solve the problems of difficult introduction of pressure sensors into the line, risk for people who are present, and unexpected malfunction of thick-matter pump
Pending Publication Date: 2022-06-30
PUTZMEISTER ENG
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The invention provides a method for accurately detecting changes in the expansion of a pipeline due to high pressure or low stability, using strain gauges placed on the pipeline. The strain gauges should run in the same direction as the pipeline and be at a minimum distance from the ends of the pipeline. The method simplifies the production of the pipeline and ensures stability. The complexity of the calculations can be managed with a processor, and the results can be quickly and accurately obtained. A pipeline with a constant internal diameter allows for the pumping of thick matter without pressure loss or excessive resistance.
Problems solved by technology
Lines of this type can burst, especially in the case of the occurrence of a blockage, with a resulting risk for people who are present and an unexpected malfunction of a thick-matter pump.
The introduction of pressure sensors into the line is difficult and prone to faults, since these pressure sensors come directly into contact with the thick matter to be delivered, which causes difficulties especially in the case of concrete and damages the pressure sensors.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0041]FIG. 1 shows a vehicle which has a tripartite boom arm 2 and a concrete pump 3. The concrete pump 3 is the thick-matter pump, and has a multiple-part delivery line 4 on the boom arm 2, which delivery line 4 opens into a line end 5. Pumped or delivered concrete can exit here. To this end, the concrete is pumped into the delivery line 4 by a pumping apparatus 6. Depending on the length of the entire delivery line 4 and, above all, also the height of the line end 5, a different pressure recognizably has to be applied by the pumping apparatus 6, possibly a very high pressure, as is known. Above all in the case of pumping of concrete, as was explained at the outset, the line is loaded greatly on its inner side and, as it were, is worn or abraded. The wall thickness therefore actually decreases. If a blockage then occurs as explained at the outset, the pressure rises greatly and there is therefore the risk that, at high pressure, the delivery line 4 can burst at a particularly thin ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A pipeline for conveying concrete determines a pressure in and / or a wall thickness of the pipeline, wherein a first length portion of the pipeline has a first wall thickness and a second length portion of the pipeline has a second wall thickness greater than the first wall thickness. The determination is made using a first strain gauge on an outer side of the first length portion and a second strain gauge on an outer side of the second length portion, wherein the strain gauges are each fixedly applied to the outer side of the length portions. By comparison of the measurements at the two strain gauges, it is possible to determine a wall thickness by determining a strain of the pipeline owing to a decrease in the wall thickness.
Description
FIELD OF THE INVENTION[0001]The invention relates to a pipeline which is used, in particular, for the delivery of thick matter such as, for example, concrete, and to a method for the determination of a pressure in a pipeline of this type. Moreover, the invention relates to a thick-matter pump with a pipeline of this type.BACKGROUND AND SUMMARY OF THE INVENTION[0002]In pipelines for the delivery of thick matter such as, for example, concrete, as are used, in particular, in what is known as a mobile concrete pump, it is of importance for a pressure in the line and a wear state of this line to be determined and, in particular, a wall thickness. The determination of the pressure is important, in order for it to be possible for what are known as blockages to be determined very rapidly before they can be eliminated only with great effort or even can no longer be eliminated, and before direct mechanical damage can occur. The determination of the wear state is important because otherwise, e...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01L7/02F16L57/06F16L9/18F04B15/02F04B53/16
CPCG01L7/022F16L57/06F04B53/16F04B15/02F16L9/18G01L7/02F04B17/06
Inventor HUTH, TOBIASKASTEN, KNUTMUELLER, ANSGAR
Owner PUTZMEISTER ENG